Show one meeting time in every member's time zone
/when 3pm shows that time for everyone in the chat. Your group spans countries and you keep asking "is that my time or yours?"
- ✓ Free to start
- ⭐ Pro per user, about $3.00
- 💬 Works inside Telegram
- ✓ Bot facts verified 25 Oct 2026
- You: /when 3pm tomorrow.
- When Is It: 🌍 Tomorrow 15:00 your time. Europe/Warsaw — 15:00. America/New_York — 10:00. Asia/Tokyo — 23:00. UTC — 14:00.
- You: /team add core Europe/Warsaw America/New_York.
- When Is It: Named zone sets with /team are Pro. Free: 3 saved preset zones. Pro: unlimited presets and /team. Buttons: ⭐ Unlock Pro · 150 Stars.
- Invoice: When Is It Pro. Unlimited preset zones. /team named zone sets. For your account. Pay 150 Telegram Stars.
Example chat. The commands are real; send them to @WhenIsItBot.
Short answer
How do you convert time zones in a Telegram group?
When Is It (@WhenIsItBot) shows one time in every member's time zone in a Telegram group. Each member sets a zone once with /tz Europe/Warsaw, then /when 3pm tomorrow converts the time for up to 12 zones plus UTC. Converting times in groups is free. Pro adds unlimited presets and /team.
Last checked . Telegram rules checked against Telegram's documentation: Telegram Bots: introduction, Telegram inline bots, Payments in Telegram Stars. Bot commands, limits and prices come from the bots' own data, verified .
Key terms
- When Is It (@WhenIsItBot)
- Time-zone converter for Telegram groups and inline use, DST-correct.
- Pro, per user
- A one-time payment of 150 Telegram Stars inside When Is It. Pro is for your own Telegram account.
The problem
People do time zone math in their heads and get it wrong. Daylight saving changes make it worse.
With When Is It
Time-zone converter for Telegram groups and inline use, DST-correct.
How @WhenIsItBot works →How to do it
Each step uses a real command. Copy it into Telegram.
- 11
Each member sets a zone once
A city name, an abbreviation like CET, or an offset like +2 all work.
/tz Europe/Warsaw - 22
Say a time
In the group, the bot converts your time to every zone members have set, plus UTC, up to 12 zones.
/when 3pm tomorrow - 33
Check the time now
/now shows the current time for every member zone. Daylight saving is resolved live.
/now
A remote team in three countries
An illustration of a typical setup, not a customer story.
-
First
Each person sends /tz once: Warsaw, New York, Tokyo.
-
Then
The lead types /when 4pm friday in the team chat.
-
Result
One card shows the call time for all three zones and UTC.
Start free. Pay once when you need more.
Converting times in groups is free. Free saves 3 preset zones. Pro adds unlimited presets, inline results from your own presets, and /team, a named zone set the whole group can reuse. Pro is a one-time Stars payment per user.
Free
0 StarsWhat you get with When Is It at no cost.
- 3 saved preset zones
Pro
⭐ 150 Stars · per userOne payment unlocks Pro for your account. That is about $3.00.
- Unlimited preset zones
- /team named zone sets
Opens @WhenIsItBot in Telegram. Send /pro there. You pay with Telegram Stars inside the bot.
Pro is paid once in Telegram Stars, inside each bot. No account and no card on this site. The Pro page lists every bot's price and what Pro adds.
⭐ See every Pro upgradeThe main bot, and bots that help
Questions people ask
What time zone formats can I use?
IANA names like Europe/Warsaw, common abbreviations like CET, PST or JST, or an offset like +2 or -5:30.
How many zones does /when show?
In a group, every distinct zone set by members, plus UTC, up to 12 zones. In a private chat with the bot, only your own zone.
Can I use it without adding the bot?
Yes. Type @WhenIsItBot 3pm tomorrow in any chat. You get a one-off card with UTC and a small default set of zones.
What does Pro add?
Unlimited saved zones (free has 3), inline results from your own zones, and /team named zone sets for a group, for a one-time 150 Stars payment.
Try it in your chat now
Open @WhenIsItBot, press Start, and send the first command. It is free to start.
Related use cases
All use cases →See who is coming to your event, right in the group chat
Going, Maybe, Can't. One card that updates itself.
Set reminders in Telegram with one line of text
Type when and what. The bot writes back on time.
Count down to a trip, a launch or a holiday in your group chat
One message that counts down to your date and updates itself.
For builders
Need a bot that does exactly your job?
We build Telegram bots and Mini Apps with Stars payments. Or list your own bot here.